.btn_jw{
    height: 40px;
	width: 100px;
    color: #fff;
	font-weight: bold;
	font-size:16px;
    background:  skyblue;
	border: none;
    border-radius: 3px;
}

.btn_shrink{
	position: fixed;
	left: 20px;
	top:80px;
}

.left_panel{
	width:400px;
	height: 600px;
	position: fixed;
	left: 127px;
	top:60px;
}

.right_panel{
	width:400px;
	height: 600px;
	position: fixed;
	right: 127px;
	top:60px;
}

.panel{
	border: 1px solid darkgray;
	border-radius: 6px;
	background-color: white;
}








